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Unreported bycatch in the New Zealand West Coast South Island hoki fishery


  • Bremner, Graeme
  • Johnstone, Peter
  • Bateson, Tracy
  • Clarke, Philip


There are recognised benefits to managing fisheries by individual transferable quotas (ITQs), but ITQs may increase incentives to discard fish. Trawl data from government-observed trawlers in the New Zealand hoki fishery were used to predict catches of unobserved vessels. These predictions were compared with the catches unobserved vessels reported. Unobserved vessels' reported catches were significantly different to observed vessels' catches. There was clear evidence of misreporting in the hoki fishery. Misreporting deprives stakeholders of rentals, distorts catch statistics, and threatens the integrity of ITQ systems. If reporting is similarly biased in other fisheries, the issue cannot be safely ignored.

Suggested Citation

  • Bremner, Graeme & Johnstone, Peter & Bateson, Tracy & Clarke, Philip, 2009. "Unreported bycatch in the New Zealand West Coast South Island hoki fishery," Marine Policy, Elsevier, vol. 33(3), pages 504-512, May.
  • Handle: RePEc:eee:marpol:v:33:y:2009:i:3:p:504-512

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    References listed on IDEAS

    1. Bijwaard, Govert E. & Knapp, Sabine, 2009. "Analysis of ship life cycles--The impact of economic cycles and ship inspections," Marine Policy, Elsevier, vol. 33(2), pages 350-369, March.
    2. Mitchell, Ronald B., 1994. "Regime design matters: intentional oil pollution and treaty compliance," International Organization, Cambridge University Press, vol. 48(03), pages 425-458, June.
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    Cited by:

    1. Stewart, James & Leaver, Jonathan, 2015. "Efficiency of the New Zealand annual catch entitlement market," Marine Policy, Elsevier, vol. 55(C), pages 11-22.
    2. Simmons, Glenn & Stringer, Christina, 2014. "New Zealand׳s fisheries management system: Forced labour an ignored or overlooked dimension?," Marine Policy, Elsevier, vol. 50(PA), pages 74-80.
    3. Mukherjee, Zinnia, 2015. "An economic approach to understanding the international transfer of bycatch from unilateral bycatch reduction policies," Marine Policy, Elsevier, vol. 51(C), pages 190-195.


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